Home / 120,664.60-166,541.38-69,685.63

Finding the Fourth Proportional to 120,664.60, 166,541.38 and 69,685.63

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Solution

The fourth proportional to 120,664.60, 166,541.38 and 69,685.63 is: 96,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,664.60 : 166,541.38 = 69,685.63 : x
  2. Step 2: Convert to fraction form
    120,664.60/166,541.38 = 69,685.63/x
  3. Step 3: Cross multiply
    120,664.60x = 166,541.38 × 69,685.63
  4. Step 4: Simplify right side
    120,664.60x = 11,605,541,724.58
  5. Step 5: Solve for x
    x = 11,605,541,724.58/120,664.60
  6. Step 6: Final answer
    x = 96,180.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.